package com.mybatis.config;

import com.baomidou.mybatisplus.core.injector.ISqlInjector;
import com.baomidou.mybatisplus.extension.injector.LogicSqlInjector;
import com.baomidou.mybatisplus.extension.plugins.OptimisticLockerInterceptor;
import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import com.baomidou.mybatisplus.extension.plugins.PerformanceInterceptor;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;
import org.springframework.transaction.annotation.EnableTransactionManagement;

/**
 * @ProjectName: mybatis_plus
 * @Package: com.mybatis.config
 * @ClassName: MybatisConfig
 * @author: Arisapoke
 * @date: 2021/1/27 21:31
 * @Version: 1.0
 * mapperscan在操作类中扫描注解
 */
@MapperScan("com.mybatis.mapper")
@EnableTransactionManagement
@Configuration
public class MybatisConfig {

    //注册乐观锁插件
    @Bean
    public OptimisticLockerInterceptor OptimisticLockerInnerInterceptor() {
        return new OptimisticLockerInterceptor();
    }

    /**
     * 分页插件完整设置
     @ Bean
    public PaginationInterceptor paginationInterceptor() {
        PaginationInterceptor paginationInterceptor = new PaginationInterceptor();
        // 设置请求的页面大于最大页后操作， true调回到首页，false 继续请求  默认false
        // paginationInterceptor.setOverflow(false);
        // 设置最大单页限制数量，默认 500 条，-1 不受限制
        // paginationInterceptor.setLimit(500);
        // 开启 count 的 join 优化,只针对部分 left join
        paginationInterceptor.setCountSqlParser(new JsqlParserCountOptimize(true));
        return paginationInterceptor;
    }
    **/
    @Bean
    public PaginationInterceptor paginationInterceptor() {
        return new PaginationInterceptor();
    }

    //逻辑删除组件
    @Bean
    public ISqlInjector sqlInjector(){
        return new LogicSqlInjector();
    }

    //性能分析插件
    @Bean
    @Profile({"dev","test"})
    public PerformanceInterceptor performanceInterceptor(){
        PerformanceInterceptor performanceInterceptor = new PerformanceInterceptor();
        //sql执行的最大时间,如果超过了则不执行,主要用来在测试阶段优化sql
        performanceInterceptor.setMaxTime(100);
        //是否支持格式化
        performanceInterceptor.setFormat(true);
        return performanceInterceptor;
    }

}
